[INFO] cloning repository https://github.com/alealvb/am-i-algo-yet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alealvb/am-i-algo-yet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falealvb%2Fam-i-algo-yet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falealvb%2Fam-i-algo-yet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d62a0457377b5e2523b551d6385ab21bb70cfa95
[INFO] checking alealvb/am-i-algo-yet against e4d5758286bf2cf6f415802f2cf861747a7c6c8c for pr-152972
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falealvb%2Fam-i-algo-yet" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/alealvb/am-i-algo-yet
[INFO] finished tweaking git repo https://github.com/alealvb/am-i-algo-yet
[INFO] tweaked toml for git repo https://github.com/alealvb/am-i-algo-yet written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/alealvb/am-i-algo-yet on toolchain e4d5758286bf2cf6f415802f2cf861747a7c6c8c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e4d5758286bf2cf6f415802f2cf861747a7c6c8c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/alealvb/am-i-algo-yet already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e4d5758286bf2cf6f415802f2cf861747a7c6c8c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking alealvb/am-i-algo-yet against e4d5758286bf2cf6f415802f2cf861747a7c6c8c for pr-152972
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falealvb%2Fam-i-algo-yet" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/alealvb/am-i-algo-yet
[INFO] finished tweaking git repo https://github.com/alealvb/am-i-algo-yet
[INFO] tweaked toml for git repo https://github.com/alealvb/am-i-algo-yet written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/alealvb/am-i-algo-yet on toolchain e4d5758286bf2cf6f415802f2cf861747a7c6c8c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e4d5758286bf2cf6f415802f2cf861747a7c6c8c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/alealvb/am-i-algo-yet already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e4d5758286bf2cf6f415802f2cf861747a7c6c8c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 62fc9fd0c23bd6e162edfa5a4ee0cc2d0f32e9ac07720504c4bdc8e91aef84b1
[INFO] running `Command { std: "docker" "start" "62fc9fd0c23bd6e162edfa5a4ee0cc2d0f32e9ac07720504c4bdc8e91aef84b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62fc9fd0c23bd6e162edfa5a4ee0cc2d0f32e9ac07720504c4bdc8e91aef84b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "62fc9fd0c23bd6e162edfa5a4ee0cc2d0f32e9ac07720504c4bdc8e91aef84b1" "/opt/rustwide/cargo-home/bin/cargo" "+e4d5758286bf2cf6f415802f2cf861747a7c6c8c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62fc9fd0c23bd6e162edfa5a4ee0cc2d0f32e9ac07720504c4bdc8e91aef84b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "62fc9fd0c23bd6e162edfa5a4ee0cc2d0f32e9ac07720504c4bdc8e91aef84b1" "/opt/rustwide/cargo-home/bin/cargo" "+e4d5758286bf2cf6f415802f2cf861747a7c6c8c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking am-i-algo-yet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]   --> src/two_sum.rs:23:20
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn two_sum(nums: &Vec<i32>, target: &i32) -> Vec<i32> {
[INFO] [stdout]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]   --> src/two_sum.rs:23:37
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn two_sum(nums: &Vec<i32>, target: &i32) -> Vec<i32> {
[INFO] [stdout]    |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `haystack`
[INFO] [stdout]  --> src/binary_search_list.rs:4:31
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn binary_search_list(haystack: &[i32], needle: i32) -> bool {
[INFO] [stdout]   |                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_haystack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `needle`
[INFO] [stdout]  --> src/binary_search_list.rs:4:49
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn binary_search_list(haystack: &[i32], needle: i32) -> bool {
[INFO] [stdout]   |                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_needle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]   --> src/two_sum.rs:23:20
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn two_sum(nums: &Vec<i32>, target: &i32) -> Vec<i32> {
[INFO] [stdout]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]   --> src/two_sum.rs:23:37
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn two_sum(nums: &Vec<i32>, target: &i32) -> Vec<i32> {
[INFO] [stdout]    |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `haystack`
[INFO] [stdout]  --> src/binary_search_list.rs:4:31
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn binary_search_list(haystack: &[i32], needle: i32) -> bool {
[INFO] [stdout]   |                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_haystack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `needle`
[INFO] [stdout]  --> src/binary_search_list.rs:4:49
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn binary_search_list(haystack: &[i32], needle: i32) -> bool {
[INFO] [stdout]   |                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_needle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "62fc9fd0c23bd6e162edfa5a4ee0cc2d0f32e9ac07720504c4bdc8e91aef84b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62fc9fd0c23bd6e162edfa5a4ee0cc2d0f32e9ac07720504c4bdc8e91aef84b1", kill_on_drop: false }`
[INFO] [stdout] 62fc9fd0c23bd6e162edfa5a4ee0cc2d0f32e9ac07720504c4bdc8e91aef84b1
